If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

Can you find out the missing number in the grid?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Can you identify the hidden rebus in the image below?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

No matter how little or how much you use me, you change me every month. What am I?

When does a USA Potato change its nationality?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?